package appeng.client.gui.implementations;

import java.util.List;

import appeng.api.config.Settings;
import appeng.api.config.SortDir;
import appeng.api.config.SortOrder;
import appeng.api.config.ViewItems;
import appeng.api.networking.IGridHost;
import appeng.api.storage.data.IAEItemStack;
import appeng.client.gui.AEBaseGui;
import appeng.client.gui.widgets.GuiImgButton;
import appeng.client.gui.widgets.GuiScrollbar;
import appeng.client.gui.widgets.ISortSource;
import appeng.client.me.ItemRepo;
import appeng.client.me.SlotME;
import appeng.container.implementations.ContainerController;
import appeng.core.AEConfig;
import appeng.core.localization.GuiText;
import appeng.util.Platform;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.GL11;

public class GuiController extends AEBaseGui implements ISortSource {
    private final ItemRepo repo;
    private final int rows = 4;
    private GuiImgButton units;
    private int tooltip = -1;

    public GuiController(final InventoryPlayer inventoryPlayer, final IGridHost te) {
        super(new ContainerController(inventoryPlayer, te));
        final GuiScrollbar scrollbar = new GuiScrollbar();

        this.setScrollBar(scrollbar);
        this.repo = new ItemRepo(scrollbar, this);
        this.ySize = 215;
        this.xSize = 242;
        this.repo.setRowSize(5);
    }
    
    @Override
    protected void actionPerformed(final GuiButton btn) {
        super.actionPerformed(btn);

        final boolean backwards = Mouse.isButtonDown(1);

        if (btn == this.units) {
            AEConfig.instance.nextPowerUnit(backwards);
            this.units.set(AEConfig.instance.selectedPowerUnit());
        }
    }

    @Override
    public void initGui() {
        super.initGui();

        this.units = new GuiImgButton(
            this.guiLeft - 18,
            this.guiTop + 8,
            Settings.POWER_UNITS,
            AEConfig.instance.selectedPowerUnit()
        );
        this.buttonList.add(this.units);
    }

    @Override
    public void drawScreen(final int mouseX, final int mouseY, final float btn) {
        final int gx = (this.width - this.xSize) / 2;
        final int gy = (this.height - this.ySize) / 2;

        this.tooltip = -1;

        int y = 0;
        int x = 0;
        for (int z = 0; z <= 4 * 5; z++) {
            final int minX = gx + 14 + x * 31;
            final int minY = gy + 41 + y * 18;

            if (minX < mouseX && minX + 28 > mouseX) {
                if (minY < mouseY && minY + 20 > mouseY) {
                    this.tooltip = z;
                    break;
                }
            }

            x++;

            if (x > 4) {
                y++;
                x = 0;
            }
        }

        super.drawScreen(mouseX, mouseY, btn);
    }

    @Override
    public void
    drawFG(final int offsetX, final int offsetY, final int mouseX, final int mouseY) {
        final ContainerController ns = (ContainerController) this.inventorySlots;

        this.fontRendererObj.drawString(GuiText.NetworkDetails.getLocal(), 8, 6, 4210752);

        this.fontRendererObj.drawString(
            GuiText.StoredPower.getLocal() + ": "
                + Platform.formatPowerLong(ns.getCurrentPower(), false),
            13,
            16,
            4210752
        );
        this.fontRendererObj.drawString(
            GuiText.PowerUsageRate.getLocal() + ": "
                + Platform.formatPowerLong(ns.getPowerUsage(), true),
            13,
            26,
            4210752
        );

        final int sectionLength = 30;

        int x = 0;
        int y = 0;
        final int xo = 12;
        final int yo = 42;
        final int viewStart = 0; // myScrollBar.getCurrentScroll() * 5;
        final int viewEnd = viewStart + 5 * 4;

        String toolTip = "";
        int toolPosX = 0;
        int toolPosY = 0;

        for (int z = viewStart; z < Math.min(viewEnd, this.repo.size()); z++) {
            final IAEItemStack refStack = this.repo.getReferenceItem(z);
            if (refStack != null) {
                GL11.glPushMatrix();
                GL11.glScaled(0.5, 0.5, 0.5);

                String str = Long.toString(refStack.getStackSize());
                if (refStack.getStackSize() >= 10000) {
                    str = Long.toString(refStack.getStackSize() / 1000) + 'k';
                }

                final int w = this.fontRendererObj.getStringWidth(str);
                this.fontRendererObj.drawString(
                    str,
                    (int) ((x * sectionLength + xo + sectionLength - 19 - (w * 0.5)) * 2),
                    (y * 18 + yo + 6) * 2,
                    4210752
                );

                GL11.glPopMatrix();
                final int posX = x * sectionLength + xo + sectionLength - 18;
                final int posY = y * 18 + yo;

                if (this.tooltip == z - viewStart) {
                    toolTip = Platform.getItemDisplayName(this.repo.getItem(z));

                    toolTip
                        += ('\n' + GuiText.Installed.getLocal() + ": "
                            + (refStack.getStackSize()));
                    if (refStack.getCountRequestable() > 0) {
                        toolTip
                            += ('\n' + GuiText.EnergyDrain.getLocal() + ": "
                                + Platform.formatPowerLong(
                                    refStack.getCountRequestable(), true
                                ));
                    }

                    toolPosX = x * sectionLength + xo + sectionLength - 8;
                    toolPosY = y * 18 + yo;
                }

                this.drawItem(posX, posY, this.repo.getItem(z));

                x++;

                if (x > 4) {
                    y++;
                    x = 0;
                }
            }
        }

        if (this.tooltip >= 0 && toolTip.length() > 0) {
            this.drawTooltip(toolPosX, toolPosY + 10, 0, toolTip);
        }
    }

    @Override
    public void
    drawBG(final int offsetX, final int offsetY, final int mouseX, final int mouseY) {
        this.bindTexture("guis/controller.png");
        this.drawTexturedModalRect(offsetX, offsetY, 0, 0, this.xSize, this.ySize);
    }

    public void postUpdate(final List<IAEItemStack> list) {
        this.repo.clear();

        for (final IAEItemStack is : list) {
            this.repo.postUpdate(is);
        }

        this.repo.updateView();
        this.setScrollBar();
    }

    private void setScrollBar() {
        final int size = this.repo.size();
        this.getScrollBar().setTop(39).setLeft(175).setHeight(78);
        this.getScrollBar().setRange(0, (size + 4) / 5 - this.rows, 1);
    }

    // @Override - NEI
    public List<String> handleItemTooltip(
        final ItemStack stack,
        final int mouseX,
        final int mouseY,
        final List<String> currentToolTip
    ) {
        if (stack != null) {
            final Slot s = this.getSlot(mouseX, mouseY);
            if (s instanceof SlotME) {
                IAEItemStack myStack = null;

                try {
                    final SlotME theSlotField = (SlotME) s;
                    myStack = theSlotField.getAEStack();
                } catch (final Throwable ignore) {}

                if (myStack != null) {
                    while (currentToolTip.size() > 1) {
                        currentToolTip.remove(1);
                    }
                }
            }
        }
        return currentToolTip;
    }

    // Vanilla version...
    protected void drawItemStackTooltip(final ItemStack stack, final int x, final int y) {
        final Slot s = this.getSlot(x, y);
        if (s instanceof SlotME && stack != null) {
            IAEItemStack myStack = null;

            try {
                final SlotME theSlotField = (SlotME) s;
                myStack = theSlotField.getAEStack();
            } catch (final Throwable ignore) {}

            if (myStack != null) {
                final List currentToolTip = stack.getTooltip(
                    this.mc.thePlayer, this.mc.gameSettings.advancedItemTooltips
                );

                while (currentToolTip.size() > 1) {
                    currentToolTip.remove(1);
                }

                currentToolTip.add(
                    GuiText.Installed.getLocal() + ": " + (myStack.getStackSize())
                );
                currentToolTip.add(
                    GuiText.EnergyDrain.getLocal() + ": "
                    + Platform.formatPowerLong(myStack.getCountRequestable(), true)
                );

                this.drawTooltip(x, y, 0, join(currentToolTip, "\n"));
            }
        }
        // super.drawItemStackTooltip( stack, x, y );
    }

    @Override
    public Enum getSortBy() {
        return SortOrder.NAME;
    }

    @Override
    public Enum getSortDir() {
        return SortDir.ASCENDING;
    }

    @Override
    public Enum getSortDisplay() {
        return ViewItems.ALL;
    }
}